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Question
Find the adjoint of the matrix `"A" = [(2,-3),(3,5)]`
Solution
`"A" = [(2,-3),(3,5)]`
A11 = (-1)1+1 (5) = 5
A12 = (-1)1+2 (3) = -3
A21 = (-1)2+1 (-3) = 3
A22 = (-1)2+2 (2) = 2
∴ adj (A)`=[(5,3),(-3,2)]`
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